Title:
OPTICAL FILTER AND UV PIGMENT
Document Type and Number:
WIPO Patent Application WO/2023/218937
Kind Code:
A1
Abstract:
The present invention relates to an optical filter comprising a substrate and a reflecting layer that is formed from a dielectric multilayer film layered as an outermost layer on at least one principal surface side of the substrate, wherein the substrate has a resin layer, and the resin layer includes a transparent resin, a UV pigment that satisfies all of prescribed characteristics (i-1) through (i-4), and an IR pigment that has a maximum absorption wavelength in the wavelength range of 650-800 nm.
Inventors:
ORITA YUICHIRO (JP)
SHIONO KAZUHIKO (JP)
SHIONO KAZUHIKO (JP)
Application Number:
PCT/JP2023/016177
Publication Date:
November 16, 2023
Filing Date:
April 24, 2023
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
G02B5/22; B32B7/023; B32B27/18; C09K3/00; G02B5/26; G02B5/28; G03B11/00; H01L27/146
Domestic Patent References:
| WO2022024826A1 | 2022-02-03 | |||
| WO2022065029A1 | 2022-03-31 |
Foreign References:
| JPH04255849A | 1992-09-10 | |||
| JP2007225702A | 2007-09-06 | |||
| US3528814A | 1970-09-15 | |||
| JP2021120733A | 2021-08-19 | |||
| JP2020154320A | 2020-09-24 |
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
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